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Otherwise stable Ubuntu machine have an issue since installing that is critical freezing without apparent reasons. There are high probabilities that the issue been caused by NVDIA videocard.

sudo blkid output:

/dev/sda2: UUID="0E5C95E45C95C73D" TYPE="ntfs" PARTUUID="1ef0523b-02"
/dev/sda5: UUID="16EA-1372" TYPE="vfat" PARTUUID="1ef0523b-05"
/dev/sda6: UUID="fe90c52c-c1b7-4845-971e-e7ed5cb45ac4" TYPE="ext4" PARTUUID="1ef0523b-06"

/etc/fstab:

# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda6 during installation
UUID=fe90c52c-c1b7-4845-971e-e7ed5cb45ac4 /               ext4    errors=remount-ro 0       1
/swapfile                                 none            swap    sw              0       0
/dev/mapper/cryptswap1 none swap sw 0 0

/etc/crypttab:

cryptswap1 UUID=f09a516a-22c0-475c-b749-31ffed5c7bda /dev/urandom swap,offset=1024,cipher=aes-xts-plain64

ls -alh /swapfile:

-rw------- 1 root root 2.0G May  3 13:31 /swapfile
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marked as duplicate by David Foerster, Zanna, Eric Carvalho, Charles Green, Paranoid Panda Jun 7 '17 at 19:56

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
    
How new is the hardware? – Mark Yisri Jun 5 '17 at 11:30
    
Pretty recent, if you can tell me how to send this data I would do it. – parakovsky Jun 5 '17 at 11:31
    
Please use hardinfo and then take a screenshot of the program. IF it's not installed, run sudo apt install hardinfo first. – Mark Yisri Jun 5 '17 at 11:32
    
0bin.net/paste/… - this is a screenshot of the complete settings from hardinfo, as I was not clear which data you need exactly I decide to take them all. – parakovsky Jun 5 '17 at 11:38
    
@paravosky it's unreadable. I don't know if it's your fault or not, but it looks like garbled pixels. – Mark Yisri Jun 5 '17 at 11:41
up vote 3 down vote accepted

There seems to be problems with 17.04 and encrypted swapfiles... and there are some workarounds...

Edit your /etc/crypttab like so:

gksudo gedit /etc/crypttab

Change this line:

cryptswap1 UUID=xxxx-xxxx-xxxx-xxxx /dev/urandom swap,offset=1024,cipher=aes-xts-plain64

To this:

cryptswap1 /swapfile /dev/urandom swap,offset=1024,cipher=aes-xts-plain64

Also make sure that your /etc/fstab contains this:

/swapfile               none  swap  sw  0  0
/dev/mapper/cryptswap1  none  swap  sw  0  0

References:

Ubuntu Desktop 17.04 64bit slow boot

https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1668535

https://bugs.launchpad.net/ubuntu/+source/ecryptfs-utils/+bug/1670336

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There seems to be a problem now related to solution you proposed. My system stop loading, after the boot it sends me to initramfs. I am almost sure it is not a hard disk crash, as mentioned in a numeral manuals around the web, the issue - I suspect - might be in that I didn't achieve to change /etc/fstab options as you mentioned. Any way you can help me to diagnose what the problem is? Keep in mind that the drive is encrypted. – parakovsky Jun 29 '17 at 8:09
    
The system worked after the fix, yes? Sounds like you've got a new problem. Are you able to get to the GRUB menu, and recovery mode? Do you have access to a Ubuntu Live DVD/USB? – heynnema Jun 29 '17 at 13:53
    
yes, to everything. – parakovsky Jun 29 '17 at 17:37
    
Start a new question for me. Ping me in a comment starting with @heynnema and I'll try and help you. – heynnema Jun 29 '17 at 17:58

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